diff --git a/common/hw-gfx-gma-config.ads.template b/common/hw-gfx-gma-config.ads.template
index 43c43d5..47316ec 100644
--- a/common/hw-gfx-gma-config.ads.template
+++ b/common/hw-gfx-gma-config.ads.template
@@ -248,8 +248,10 @@
    Need_Pipe_Arb_Slots           : <genbool> := AlderlakeP_On;
 
    ----------- Planes -----------
+   Has_Mbus_Abox_Credits         : <genbool> := Gen_Tigerlake;
    Has_Mbus_Dbox_Credits         : <genbool> := Tigerlake_On;
    Has_New_Mbus_Dbox_Credits     : <genbool> := AlderlakeP_On;
+   Has_Mbus_Joining              : <genbool> := AlderlakeP_On;
    Has_Wide_Watermarks           : <genbool> := Tigerlake_On;
    Has_Plane_Color_Control       : <genbool> := Tigerlake_On;